uPVC and aluminium windows and doors in Wassenaar
In shortKozijnen Wassenaar supplies and fits uPVC windows (Aluplast, Schüco), aluminium windows (Aluprof, Reynaers, Cortizo, Schüco) and made-to-measure front and garden doors. You compare the systems at the showroom at Langstraat 52a in Wassenaar. After a free measuring visit you receive a quote within 24 hours; the lead time is 4 to 6 weeks for uPVC and 6 to 10 weeks for aluminium.
Calculate your priceRequest a free measurement

Replacing windows in Wassenaar starts with one choice: uPVC (kunststof) or aluminium. uPVC frames are low-maintenance and more affordable, while aluminium frames are slimmer and carry larger panes. After that you choose the opening style, glass, hardware and colour, and perhaps a front door.
Homes in Wassenaar vary widely, from houses in the village centre to villas and country houses among the trees. Part of the village is a protected conservation area (beschermd dorpsgezicht) and there are more than 300 listed buildings (rijksmonumenten). Bring a photo of your façade to the showroom and compare it with the frames on display.
- uPVC windows in Wassenaar
- Aluminium windows in Wassenaar
- uPVC or aluminium?
- Wooden windows in Wassenaar? Choose the wood look
- Opening styles: how does the window open?
- Glass: HR++ or triple glazing
- A new front door in Wassenaar
- Garden doors
- Hardware, security and options
- Colours, inside and outside separately
- Replacing windows in Wassenaar
- ISDE subsidy for insulating glass
uPVC windows in Wassenaar
A uPVC frame (kunststof kozijn) never needs painting; an occasional clean is enough. The profile is made up of several chambers that insulate together, and it costs less than aluminium.
Ideal 7000 NL
A multi-chamber profile with a steel core that keeps the frame rigid and true to size.
Aluplast
LivIng 82
Insulates even better, a good match for triple glazing.
Schüco

Aluminium windows in Wassenaar
Aluminium carries a lot of glass with a narrow profile, which suits large windows and clean lines. The frames are powder-coated in a RAL colour of your choice. Close to the sea we recommend a coast-resistant coating and corrosion-resistant hinges and locks (hang- en sluitwerk).
MB-86N
The system chosen most often; thermally broken for better insulation.
Aluprof
MB-79N
Slimmer, and designed for renovation.
Aluprof
MasterLine 8
Concealed hardware: hinges and locks stay out of sight.
Reynaers
SlimLine 38
Very narrow profiles with the look of a steel window, suitable for listed buildings.
Reynaers
COR 70 and COR Vision
Minimalist, with very little visible frame around a lot of glass.
Cortizo
AWS 75
Schüco’s aluminium window system.
Schüco



uPVC or aluminium?
| Appearance | uPVC: slightly wider frames. Aluminium: slim lines and large panes. |
|---|---|
| Colour | uPVC: 12 colours and wood grain. Aluminium: powder coating in a RAL colour of your choice. |
| Maintenance | Neither needs painting. |
| Price | Aluminium costs roughly 15 to 25 percent more than uPVC. |
| Lead time | uPVC 4 to 6 weeks, aluminium 6 to 10 weeks. |
Wooden windows in Wassenaar? Choose the wood look
Looking for wooden frames usually means looking for the warm look of timber. We do not supply wooden frames, but we do offer uPVC with a wood-grain foil (houtnerf-folie) in Golden Oak or Walnut (Notenhout): the colour and grain of wood, without ever having to sand or paint.
The foil can go on the outside, the inside or both. At the showroom you can see it on a real profile rather than a printed chart.

Indicative prices
The same amounts as in the price calculator. To see your own size, draw the frame in the calculator.
| uPVC tilt-and-turn window, 100 × 100 cm, white, HR++ | approx. € 786 |
|---|---|
| uPVC tilt-and-turn window, 100 × 100 cm, white, triple glazing | approx. € 895 |
| uPVC tilt-and-turn + turn window, 150 × 140 cm, anthracite outside | approx. € 1,696 |
| Aluminium tilt-and-turn window, 100 × 120 cm, anthracite, triple glazing | approx. € 1,397 |
| Double French garden doors, uPVC, 180 × 210 cm, HR++ | approx. € 2,595 |
| Made-to-measure front door with frame, uPVC, 90 × 210 cm | from € 3,231 |
| Made-to-measure front door with frame, aluminium, 90 × 210 cm | from € 3,708 |
Indicative prices from the price calculator, including ground-floor installation and 21% VAT. Each order has a one-off € 484 project charge for transport and removal of the old frames. The final price follows the free measurement.
Calculate your priceOpening styles: how does the window open?
The opening style decides how you ventilate and clean. A fixed section, with plenty of glass and little frame, combines with any style and costs less than one that opens.
Tilt-and-turn (draai-kiep)
One handle tilts the window for fresh air or swings it fully open.
Side-hung or bottom-hung
Turn only (draairaam) or tilt only (kiepraam), often high up, as in a bathroom.
Tilt-and-turn plus turn
Two sashes: one tilts and turns, the other only turns.
French casement (stolpraam)
Two sashes with no fixed central post, for a wide, clear opening and a traditional look.
Transom and triangle
A section above a window or door (bovenlicht), or a triangular window under a sloping roofline.

Glass: HR++ or triple glazing
As standard we fit HR++ double glazing with a Ug value of around 1.1; the lower that value, the less heat escapes. Triple glazing (HR+++) reaches around 0.5, costs around € 90 per m² more and noticeably reduces noise, which you notice most in a bedroom facing the street.
Triple glazing comes with warm-edge spacers (warme afstandhouders): the strip between the panes conducts less cold, the edge of the glass stays warmer and you see less condensation in the corners.



A new front door in Wassenaar
For a front door (voordeur) you choose from 144 EkoLine panel designs, in uPVC or aluminium and in 9 colours, wood grain included. Then you add a sidelight (zijlicht) on the left, the right or both sides, a straight or arched transom, a letterbox, glazing bars (roeden), clear or frosted glass and a handle in stainless steel or black.
For security you can choose a multi-point lock, which secures the door at several points at once, and burglar-resistant hardware in class RC2 with SKG certification. A smart lock is also possible.

Garden doors
Garden doors (tuindeuren) open as a single or double door, with or without sidelights and a transom, in uPVC or aluminium. They do need room to swing. If you want a wider wall of glass, take a look at our sliding doors.

Hardware, security and options
You choose these options per window or door.
RC2 security hardware
Burglar-resistant, SKG-certified if you wish, with a lockable handle as an option.
Concealed hinges
Built into the profile, so the window looks clean.
Built-in insect screen (inbouwhor)
Tucked into the frame: insects stay out, even with the window open.
Trickle vent (ventilatierooster)
Fresh air indoors, even with the windows closed.
Hardware for the coast
Corrosion-resistant fittings that stand up to salt on the sea wind.
Window sill and coupling profile
A PVC sill finishes the inside; a coupling profile joins frames into one unit.

Colours, inside and outside separately
uPVC frames come in white, cream white and ten other colours, including anthracite (RAL 7016), black (RAL 9005), steel blue and fir green, plus wood grain in Golden Oak and Walnut. You choose inside and outside separately, for example anthracite on the façade and white indoors, to match light walls. Each coloured or wood-grain side adds around 16 percent to the price.
Replacing windows in Wassenaar
After the free measuring visit (gratis inmeten) you receive a quote within 24 hours, with frame, glass and fitting as separate items, followed by a fixed installation date. Our own fitting team removes the old frames, installs the new ones and takes the old material away. In most homes the work is done in one to a few days.
ISDE subsidy for insulating glass
Through the ISDE scheme of the Netherlands Enterprise Agency (RVO), owners of an existing home can receive a subsidy for insulating glass. The glass must meet a maximum U-value and be fitted by a company; you apply after installation.
The conditions change every year, so check rvo.nl for the current rules. If your glass qualifies, we help you with the application.
Windows in your area
Questions we often hear
Do you also supply wooden windows?
No, we work with uPVC and aluminium. The alternative is a uPVC frame with a Golden Oak or Walnut wood-grain foil: the look of wood, without the painting.
How long does it take to replace my windows?
After the measuring visit, the lead time is 4 to 6 weeks for uPVC and 6 to 10 weeks for aluminium. The fitting itself takes one to a few days in most homes, on a date you know in advance.
Is triple glazing worth the extra cost?
Triple glazing costs around € 90 per m² more, insulates better (Ug around 0.5 against 1.1 for HR++) and noticeably reduces noise. If you live on a busy road or want to lose as little heat as possible, it is well worth considering.
Is there a discount if I replace all the windows?
From 5 frames in one order, an 8 percent volume discount applies. The project costs for transport and disposal are charged once per order.
What if my home is a listed building?
Then rules apply to profiles, glazing bars and colour. We find out in advance which ones apply to your address. For the thin lines of old steel windows, Reynaers SlimLine 38 is a suitable system.
Request a free measurement
Leave your details or drop by the showroom on Langstraat. We measure for free and send the quote within 24 hours.
ShowroomLangstraat 52a
2242 KN Wassenaar
Tuesday to Saturday 10:00-17:00, closed on Monday and Sunday
+31 6 41 50 36 42WhatsAppinfo@d-kozijnen.nlDirections to the showroom